- 問題詳情:WorldHelloDayEveryNovember21isWorldHelloDay, 61 peoplesayhellotoeachothertoexpressfriendlinessandlove.WorldHelloDay 62 (found)in1973byBrianandMichaelMcCormack,in 63 (respond)totheconflictbetweenEgyptandIsrael.Theysentalargenumberoflette...
- 16127